Now the most credit you can get for trading in your old iPhone to Apple is $225, which is down from $250, or $270 in Canada. The change is currently shown on Canadian retail store pages and U.S. sites, but expect the change to be happening elsewhere in the world too.

Back in August, before the iPhone 5s and iPhone 5c were announced, Apple launched an in-store iPhone trade-in program. Right now, it's exclusive to the U.S, but a new report from the folks at 9to5Mac suggests it will soon expand to British shores:

Walmart recently announced that they'll be offering trade-in pricing for your used iPhone in exchange for in-store credit. The program will start on September 21st and over 3,500 Walmart stores will be participating.

The smartphone aftermarket is red hot these days, with U.S. carriers already diving in with greedy hands open, and Apple Retail rumored to be getting into the game as well. With new iPhones hitting the shelves every year - including rumored iPhone 5s and iPhone 5c this year - and some segment always looking to upgrade early, getting value from those trade-ins in more price-sensitive and emerging markets is just too attractive a proposition for anyone to pass up. iMore's been able to independently confirm that information about the trade-in program is making its way into retail, but Mark Gurman has a ton of details up already on 9to5Mac:

According to an email MacRumors received from Verizon, existing customers will get their long awaited chance to pre-order the iPhone 4 on February 3rd at 3am EST. This is a full week before people who are waiting to switch to Verizon will be able to get their hands on an iPhone 4. Verizon also listed some simple steps for current customers to take to ensure they will be able to place their pre-order on time. Make sure you get your orders in as soon as you can because once their stock has depleted you will have to wait until February 10th just like everyone else.

BGR has just reported that AT&T may be working on a handset exchange program to be unveiled this upcoming June. Do you think this may have something to do with a new iPhone being released? Yeah, TiPb thinks so as well.